eavesdrop

When you eavesdrop, you secretly listen in on someone's conversation. A little girl might eavesdrop on her parents in an attempt to find out what she's getting for her birthday.
Whenever you deliberately overhear a phone conversation, or two people having a quiet argument, you eavesdrop. You might eavesdrop on a funny exchange between two friends at a cafe, or eavesdrop on an important conversation between your boss and one of your coworkers. The verb eavesdrop comes from the old-fashioned noun eavesdropper, "one who listens from under the eaves," from the even more old-fashioned eavesdrop, "ground where rainwater drips off the roof."

Scurry

Scurry means to move quickly, at a frenzied pace, and often also implies the urge to hide. When you come upon a mouse in your house, chances are it will scurry away.
Think of scurry this way — anytime you describe someone as scurrying, you're comparing them to a mouse. When you say troops scurried back behind their defensive lines, you're insulting them. When you say children scurry around searching for eggs during an Easter egg hunt, you think they're cute

barricade

A barricade is anything that prevents people or vehicles from getting through. Construction workers often barricade a street to block traffic.
You know how barriers block things from getting through? A barricade is similar. Soldiers create barricades to keep enemy troops out. Police officers put up barricades around a crime scene. If an electrical wire becomes loose and dangerous, a barricade around the area will keep people from getting hurt. This can also be a verb, like when parents barricade part of their house to keep toddlers from getting into trouble. Barricading is a physical way of saying "Keep out!"

swarm

A swarm is a good word for a large group of bees going on the attack — not good news. Like bees, any group of people or animals can be considered a swarm if they act together and quickly — even fiercely.
On a hot day, when an ice-cream truck shows up, it's usually greeted by a swarm of hot, hungry kids. People at a concert can be a swarm — and people in the swarm can be hurt, because there's lots of pushing and shoving. When tickets for a popular movie go on sale, a swarm of people will swarm the theater. As you can see, swarm works as either a noun or verb, and people could teach bees a thing or two about swarming

translucens

• The under side of the stem and leaf are purplish brown and were covered with translucent jelly, embedded in which were millions of what I took to be insects' eggs.

A translucent material lets light pass through, but objects on the other side can't be seen clearly. Think Shrinky Dinks or stained glass.
In contrast, a transparent material allows you to clearly see the objects on the other side. Frosted glass is translucent, and regular glass is transparent. But opaque glass doesn't let any light through at all, and so you can't see through it. The adjective translucent is from Latin translucens, from translucere "to shine through."

national

The word national describes anything that is common to, shared by, or represents a group of people or a place that is considered a nation, like the national anthem sung before the national pastime of baseball. National statistics provide information about a country as a whole. During times of war, the national mood is usually tense and sad. A national is also a citizen of a nation. You might be called an “American national” if you are an American living in Paris.

Sabotage

Sabotage isn't very nice: It's when you ruin or disrupt something by messing up a part of it on purpose. Loosening the blades on your competitor's ice skates would definitely be considered sabotage.
Sabotage comes from the French word saboter, which literally means “walk noisily.” That's funny, because the last thing you'd want to do when committing an act of sabotage is stomp around and get caught. It’s believed that sabotage came into use in 1910 as a noun, and then later in 1918 as a verb. Apparently, people only became so cruel in the last century or so.

emerge

To emerge means to come out into view or come forth. You might hope to emerge from an epic perming session looking like a beauty queen, but chances are it will just look like you got electrocuted.
From the Latin emergere, meaning to “rise out or up, bring forth, bring to light,” emerge is an intransitive verb that might bring to mind the image of a whale rising up from the depths of the sea, or of a person popping out from a dark corner to spook you. Appear and peep are synonyms, while dip and sink are antonyms.

circumference

The distance around a circle is called the circumference, and although circumference is often used when talking about round things, it can mean a boundary of any shape that completely surrounds something.
It’s no coincidence that the first part of circumference looks like circle. The Latin word circum means “around,” and the root ferre is the Latin verb for “carry,” so imagine carrying a puppy around a circle pit of lava: the path you walk is the circumference. If you want to buy a new hat, you’ll need to measure the circumference of your head, and patrolling the circumference of your castle is a good way to protect against dragons.